Adding a rear Control Valve

   / Adding a rear Control Valve #1  

yanuch4763

New member
Joined
Dec 3, 2011
Messages
4
Tractor
Kubota BX24
First I have to say TBN is a great resource. I have learned a lot just reading posts that often do not seen related to my interests but prove instructive. Now to my question.

I have a Kubota BX24. I want to add a control valve to operate rear implements for example a dump trailer, log splitter, hydraulic cylinder I will use as a jack/ram etc. The valve will be mounted on my rear fender. I plan to use the existing backhoe hydraulic quick connects. I will have quick disconnects on the cylinder ports for connection to whatever I'm using. I think I want a valve that comes back to center when the lever is not being pushed or pulled. Is that a none detent valve? Should the center be "open" or "closed"? Does anyone know of an appropriate valve from Surplus Center?

As you can tell I am a novice to hydraulics. Is there anything else I should be taking into consideration?

Lastly, what are your thoughts on using the BX24 to power a log splitter? I have inherited some splitter components, mainly a cylinder is mounted on an Ibeam with a wedge. The valve and engine are NG not sure about the pump. Do I replace those items or just run it off my tractor?

Thanks,

Yaunch
 
   / Adding a rear Control Valve #3  
Here is a one spool valve and has PB option.

http://www.surpluscenter.com/item.asp?item=9-7861&catname=hydraulic


Here is a two spool spring to center valve and has PB option.

Surplus Center - 2 SPOOL 8 GPM PRINCE MB21BB5C1 DA VALVE

PB option

http://www.surpluscenter.com/item.asp?catname=hydraulic&item=9-7867-B


BX 24 hyd

Hydraulics:
Type: open center
Total flow: 6.3 gpm [23.8 lpm]

To run your log splitter, just unplug your rear remotes and plug in the log splitter into the BH QD and run the OUT line of the log splitter directly to tank.
 
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   / Adding a rear Control Valve #4  
Save your self some head aches- Do the calculations for your spliters ram to asure you have the voume and pressure to operate it. A log splitter will take more volume and pressure to operate that your implements. May have to adjust the main valve body pressure relief valve to the port you tie into - are tap into a supply with your new control valve on a open flow circuit. The new control valve will need to have a pressure adjustment are you can blow seals are hoses are stall out the engine. Hose ID size needs to be correct also. On some tractors its best to just use the PTO to run a spltter. I built a PTO driven hydralic power plant that i can connect my chipper, splitter and irrigation pumps to.
 
   / Adding a rear Control Valve #5  
A log splitter will take what you provide in GPM's, which determine the speed of operation, and it is the cyl load that develops the hyd pressure.

The relief valve for the tractor will limit the hyd pressure in general.

If he uses the BH circuit, he can't do much better if all the valves match the GPM flow rate.

He could however use a PTO pump for more GPM's, but is still limited by the tractor PTO HP rating.

His tractor has enough PTO HP [ 17 HP ] to provide 10 GPM@2500 psi.
 

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